Power Usage Details: Shows your power usage over time and which features use your battery the most.

Battery Usage: Shows battery history and the power usage of each app.

Current Power Settings: Shows settings that can affect battery life. Tap an item to change the setting.

Select Power Mode: Helps change settings to extend battery life.

Learn More: Provides more information on battery life.

Change the power settings to Low Power.

From within Sprint Zone, swipe from Right to Left to open Device Diagnostics.

Scroll to and tap Power Usage.

Tap Select Power Mode.

Tap Apply.

Note: If GPS is enabled, GPS must be disabled manually. On the Select Power Mode prompt, tap Continue, then tap Settings, tap the Location switch to OFF and tap the Back key to return to Sprint Zone.

Close or uninstall applications to improve battery life.

Some apps run in the background when you are not using them.

Also, some apps consume more energy than others.

Some apps come pre-loaded on your phone and you can't uninstall them.

FromDevice Diagnostics, scroll to and tap Power Usage.

Tap Battery Usage.

Tap the application you want to close or uninstall.

Close (turn off) an application: Tap Force stop.

Uninstall (remove from phone) an application: Tap App info, Uninstall, and then OK.

Verify that your Samsung Galaxy S III is running the most recent software.

From Device Diagnostics, scroll to and tap System Updates.

Tap Device Software.

Tap Check now.

If an update is available, follow the prompts to install.

Safely remove your SD card.

From the home screen, tap the Menu key.

Tap Settings.

Tap the More tab.

Scroll to and tap Storage.

Scroll to and tap Unmount SD card.

Tap OK.

Remove battery cover.

Remove the SD card.

Replace battery cover.

Perform a soft reset.

A soft reset restarts your phone and does not erase any of your content or data.

Press and hold the Power key, tap Power off, and then tap OK to turn your Samsung Galaxy S III off.

Remove the battery. After 30 seconds, reinsert the battery.

Press and hold the Power key to turn your Samsung Galaxy S III back on.

Verify that your charger is working.

Note: You risk severe damage to your phone if the charger isn't the same voltage, amps, and plug type as your original charger. You can purchase compatible chargers on sprint.com and at any Sprint Store.

Connect your phone to your charger.

From within Sprint Zone, swipe from Right to Left to open Device Diagnostics.